llvm::PseudoSourceValue Class Reference

Special value supplied for machine level alias analysis. More...

#include "llvm/CodeGen/PseudoSourceValue.h"

Inheritance diagram for llvm::PseudoSourceValue:

Public Types
enum	PSVKind : unsigned {   Stack , GOT , JumpTable , ConstantPool ,   FixedStack , GlobalValueCallEntry , ExternalSymbolCallEntry , TargetCustom }

Public Member Functions
	PseudoSourceValue (unsigned Kind, const TargetMachine &TM)
virtual	~PseudoSourceValue ()
unsigned	kind () const
bool	isStack () const
bool	isGOT () const
bool	isConstantPool () const
bool	isJumpTable () const
unsigned	getAddressSpace () const
unsigned	getTargetCustom () const
virtual bool	isConstant (const MachineFrameInfo *) const
	Test whether the memory pointed to by this PseudoSourceValue has a constant value.
virtual bool	isAliased (const MachineFrameInfo *) const
	Test whether the memory pointed to by this PseudoSourceValue may also be pointed to by an LLVM IR Value.
virtual bool	mayAlias (const MachineFrameInfo *) const
	Return true if the memory pointed to by this PseudoSourceValue can ever alias an LLVM IR Value.

Friends
class	MachineMemOperand
class	MIRFormatter
raw_ostream &	llvm::operator<< (raw_ostream &OS, const PseudoSourceValue *PSV)

Detailed Description

Special value supplied for machine level alias analysis.

It indicates that a memory access references the functions stack frame (e.g., a spill slot), below the stack frame (e.g., argument space), or constant pool.

Definition at line 31 of file PseudoSourceValue.h.

Member Enumeration Documentation

PSVKind

enum llvm::PseudoSourceValue::PSVKind : unsigned

Enumerator
Stack
GOT
JumpTable
ConstantPool
FixedStack
GlobalValueCallEntry
ExternalSymbolCallEntry
TargetCustom

Definition at line 33 of file PseudoSourceValue.h.

Constructor & Destructor Documentation

PseudoSourceValue()

PseudoSourceValue::PseudoSourceValue ( unsigned  Kind, const TargetMachine &  TM  )

explicit

Definition at line 27 of file PseudoSourceValue.cpp.

~PseudoSourceValue()

PseudoSourceValue::~PseudoSourceValue ( )

virtualdefault

Member Function Documentation

getAddressSpace()

unsigned llvm::PseudoSourceValue::getAddressSpace ( ) const

inline

Definition at line 69 of file PseudoSourceValue.h.

getTargetCustom()

unsigned llvm::PseudoSourceValue::getTargetCustom ( ) const

inline

Definition at line 71 of file PseudoSourceValue.h.

References TargetCustom.

isAliased()

bool PseudoSourceValue::isAliased ( const MachineFrameInfo *  ) const

virtual

Test whether the memory pointed to by this PseudoSourceValue may also be pointed to by an LLVM IR Value.

Reimplemented in llvm::CallEntryPseudoSourceValue, llvm::AMDGPUPseudoSourceValue, llvm::AMDGPUGWSResourcePseudoSourceValue, and llvm::FixedStackPseudoSourceValue.

Definition at line 49 of file PseudoSourceValue.cpp.

References isConstantPool(), isGOT(), isJumpTable(), isStack(), and llvm_unreachable.

isConstant()

bool PseudoSourceValue::isConstant ( const MachineFrameInfo *  ) const

virtual

Test whether the memory pointed to by this PseudoSourceValue has a constant value.

Reimplemented in llvm::CallEntryPseudoSourceValue, llvm::AMDGPUPseudoSourceValue, and llvm::FixedStackPseudoSourceValue.

Definition at line 41 of file PseudoSourceValue.cpp.

References isConstantPool(), isGOT(), isJumpTable(), isStack(), and llvm_unreachable.

isConstantPool()

bool llvm::PseudoSourceValue::isConstantPool ( ) const

inline

Definition at line 66 of file PseudoSourceValue.h.

References ConstantPool.

Referenced by isAliased(), isConstant(), and mayAlias().

isGOT()

bool llvm::PseudoSourceValue::isGOT ( ) const

inline

Definition at line 65 of file PseudoSourceValue.h.

References GOT.

Referenced by isAliased(), isConstant(), and mayAlias().

isJumpTable()

bool llvm::PseudoSourceValue::isJumpTable ( ) const

inline

Definition at line 67 of file PseudoSourceValue.h.

References JumpTable.

Referenced by isAliased(), isConstant(), and mayAlias().

isStack()

bool llvm::PseudoSourceValue::isStack ( ) const

inline

Definition at line 64 of file PseudoSourceValue.h.

References Stack.

Referenced by isAliased(), and isConstant().

kind()

unsigned llvm::PseudoSourceValue::kind ( ) const

inline

Definition at line 62 of file PseudoSourceValue.h.

Referenced by ValidateMVEStore().

mayAlias()

bool PseudoSourceValue::mayAlias ( const MachineFrameInfo *  ) const

virtual

Return true if the memory pointed to by this PseudoSourceValue can ever alias an LLVM IR Value.

Reimplemented in llvm::FixedStackPseudoSourceValue, llvm::CallEntryPseudoSourceValue, llvm::AMDGPUPseudoSourceValue, and llvm::AMDGPUGWSResourcePseudoSourceValue.

Definition at line 55 of file PseudoSourceValue.cpp.

References isConstantPool(), isGOT(), and isJumpTable().

Referenced by llvm::TargetInstrInfo::describeLoadedValue(), and MemOperandsHaveAlias().

Friends And Related Function Documentation

llvm::operator<<

raw_ostream & llvm::operator<< ( raw_ostream &  OS, const PseudoSourceValue *  PSV  )

friend

MachineMemOperand

friend class MachineMemOperand

friend

Definition at line 50 of file PseudoSourceValue.h.

MIRFormatter

friend class MIRFormatter

friend

Definition at line 51 of file PseudoSourceValue.h.

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The documentation for this class was generated from the following files:

• include/llvm/CodeGen/PseudoSourceValue.h
• lib/CodeGen/PseudoSourceValue.cpp